Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8, Problem 10RQ
What is the difference between schizocoelous and enterocoelous origins of a coelom?
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How does a molluscan coelom develop embryologically? Why was the evolutionary development of a coelom important?
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Chapter 8 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 8 - What is meant by epigenesis? How did Kaspar...Ch. 8 - How is an egg (oocyte) prepared during oogenesis...Ch. 8 - Describe events that follow contact of a...Ch. 8 - What is meant by the term activation in...Ch. 8 - How does amount of yolk affect cleavage? Compare...Ch. 8 - What is the difference between radial and spiral...Ch. 8 - What other developmental hallmarks are often...Ch. 8 - What is indirect development?Ch. 8 - Using sea star embryos as an example, describe...Ch. 8 - What is the difference between schizocoelous and...
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- What is the difference between atrium and coelom?arrow_forwardWhat is a nauplius? What is the difference between direct and indirect development in Crustacea?arrow_forwardMatch the description given with either protostome or deuterostome or neither 1)spiral cleavage 2)blastopore becomes the anus 3)schizocoelous coelom formation 4)indeterminate cleavage 5)determinate cleavage 6)blastopore becomes the primitive streak 7)radial cleavage 8)enterocoelous coelom formationarrow_forward
- How is a hemocoel different from a true coelom?arrow_forwardWhat was the evolutionary significance of segmentation and the coelom to its earliest lophotrochozoan possessors?arrow_forwardWhat does the mesoderm have to do with the designation of a true coelom? A)The mesoderm gives rise to the fluid found within the coelom. B)The mesoderm gives rise to the floor of the coelom only C)The mesoderm has nothing to do with the coelom. D)The mesoderm gives rise to the structure of the coelom wall. E)The mesoderm gives rise to the coelom because it develops within the mesodermarrow_forward
- What is the point of dividing the coelom into the thoracic and abdominal cavities? Why would a single cavity not function as well?arrow_forwardWhat is the significance of having an invariant cell lineage of the nematode, Caenorhabditis elegans?arrow_forwardWhat are four synapomorphies and four symplesiomorphies of gnathostomes?arrow_forward
- Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates have an enclosed coelom partially lined with mesodermally derived tissue. Pseudocoelomates have no enclosed coelom. true or falsearrow_forwardWhich of the following exhibits embryonic development by the protostome pathway? A) Mammals B) Sharks C) Amphibians D) Arthropoda E) Cnideria Explain whyarrow_forward1. Classify jellyfish and ant based on the following characteristics: a) body symmetry b) number of germ layers during embryonic development c) body plan if triploblastic (coelomate, acoelomate, pseudocoelomate) d) Mechanism of coelom formation, if coelomate e) the origin of mouth? f) symmetry of cleavage? g) cleavage pattern, determinate or indeterminate? h) protostome or deuterostome? 2. Support your answers on number 1.arrow_forward
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